package cn.wolfcode.wolf2w.service.impl;

import cn.wolfcode.wolf2w.domain.Destination;
import cn.wolfcode.wolf2w.domain.Strategy;
import cn.wolfcode.wolf2w.domain.Travel;
import cn.wolfcode.wolf2w.exception.LogicException;
import cn.wolfcode.wolf2w.query.TravelCondition;
import cn.wolfcode.wolf2w.query.TravelQuery;
import cn.wolfcode.wolf2w.repository.TravelRepository;
import cn.wolfcode.wolf2w.service.IDestinationService;
import cn.wolfcode.wolf2w.service.ITravelService;
import cn.wolfcode.wolf2w.service.IUserInfoService;
import cn.wolfcode.wolf2w.util.DBHelper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Date;
import java.util.List;


@Service
//@Transactional mongodb事务必须是复制集方式
public class TravelServiceImpl implements ITravelService{


    @Autowired
    private TravelRepository repository;
    @Autowired
    private IUserInfoService userInfoService;
    @Autowired
    private IDestinationService destinationService;

    @Autowired
    private MongoTemplate template;


    @Override
    public void save(Travel travel) {
        travel.setId(null);
        repository.save(travel);
    }

    @Override
    public void update(Travel travel) {
        repository.save(travel);
    }

    @Override
    public void delete(String id) {
        repository.deleteById(id);
    }

    @Override
    public Travel get(String id) {
        Travel travel = repository.findById(id).orElse(null);
        if (travel != null){
            travel.setAuthor(userInfoService.get(travel.getUserId()));
            travel.setDest(destinationService.get(travel.getDestId()));
        }
        return travel;
    }

    @Override
    public List<Travel> list() {
        return repository.findAll();
    }

    @Override
    public Page<Travel> query(TravelQuery qo) {
        //查询对象
        Query query = new Query();
        if (StringUtils.hasLength(qo.getDestId())){
            query.addCriteria(Criteria.where("destId").is(qo.getDestId()));
        }

        //出行时间
        TravelCondition day = qo.getDay();
        if (day!=null){
            query.addCriteria(Criteria.where("day").gte(day.getMin()).lte(day.getMax()));
        }
        //出行消费
        TravelCondition ex = qo.getPerExpend();
        if (ex!=null){
            query.addCriteria(Criteria.where("perExpend").gte(ex.getMin()).lte(ex.getMax()));
        }
        Pageable pageable = null;
        if (qo.getOrderType()==1){
            pageable = PageRequest.of(qo.getCurrentPage()-1,qo.getPageSize(),
                    Sort.Direction.DESC,"createTime");
        }else if (qo.getOrderType()==2){
            pageable = PageRequest.of(qo.getCurrentPage()-1,qo.getPageSize(),
                    Sort.Direction.DESC,"viewnum");
        }else {
            pageable = PageRequest.of(qo.getCurrentPage()-1,qo.getPageSize(),
                    Sort.Direction.ASC,"_id");

        }
        Page<Travel> page = DBHelper.query(template,Travel.class,query,pageable);
        //用户对象
        for (Travel travel : page) {
            travel.setAuthor(userInfoService.get(travel.getUserId()));
        }
        return page;
    }

    @Override
    public void saveOrUpdate(Travel travel) {
        if(StringUtils.hasLength(travel.getId())){
            //目的地的名称
            Destination dest = destinationService.get(travel.getDestId());
            travel.setDestName(dest.getName());
            //用户id,表现层已经设置了

            //最后的更改时间
            travel.setLastUpdateTime(new Date());

            this.update(travel);
        }else {
            //创建时间
            travel.setCreateTime(new Date());
            this.save(travel);
        }
    }

    @Override
    public void audit(String id, int state) {
        //审核的流程
        //判断是否满足审核条件
        Travel travel = this.get(id);
        if (travel ==null){
            throw new LogicException("参数议程");
        }
        if (travel.getState() != Travel.STATE_WAITING){
            throw new LogicException("游记不是待审核状态,不允许审核");
        }
        if (state == Travel.STATE_RELEASE){
            //审核通过之后做什么需求
            //修改状态为审核通过状态
            travel.setState(Travel.STATE_RELEASE);
            //修改发布时间
            travel.setReleaseTime(new Date());
            //最后更新时间
            travel.setLastUpdateTime(new Date());
            //记录审核信息(审核人,审核时间,审核状态,审核备注 ...)

            this.update(travel);
        }else if (state == Travel.STATE_REJECT){
            //审核不通过需要做什么需求

            //修改状态为审核通过状态
            travel.setState(Travel.STATE_REJECT);
            //修改发布时间(为null)
            travel.setReleaseTime(null);
            //最后更新时间
            travel.setLastUpdateTime(new Date());
            //记录审核信息(审核人,审核时间,审核状态,审核备注 ...)

            this.update(travel);
        }else {
            throw new LogicException("状态错误");
        }

    }

    @Override
    public List<Travel> queryViewnumTop3(String destId) {
        //目的地id必须指定
        //点击量排序
        //截取前三个
        Pageable pageable = PageRequest.of(0,3, Sort.Direction.DESC,"viewnum");
        List<Travel> list =repository.findByDestId(destId,pageable);
        return list;
    }

    @Override
    public List<Travel> queryByDestName(String destName) {
        List<Travel> travels = repository.findByDestName(destName);
        for (Travel travel : travels) {
            travel.setAuthor(userInfoService.get(travel.getUserId()));
            travel.setDest(destinationService.get(travel.getDestId()));
        }
        return travels;
    }

}
